There are plenty of religions to go around in this world. Some have kind of faded into obscurity over the centuries, but their impact remains in all sorts of ways. I'm not exactly an expert on the subject matter though, so if you are interested in more details, there are sources full of information online and at the local library.
It can be a beautiful season, despite how I make it sound, if you don't get involved too much with any of the side show insanity that can happen and just enjoy the good parts of it.